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kifflom [539]
3 years ago
7

Candace rolled two number cubes 42 times. She got doubles 11 times. What was her experimental probability of not getting a doubl

es?
Mathematics
1 answer:
Tasya [4]3 years ago
6 0
Her experimental probability of rolling a double is 11 out of 42 because out of the 42 times she rolled the number cubes, she got her doubles 11 times. Another way to write this as a fraction is 11/42.
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A card is drawn at random from a standard deck of playing cards (no jokers). If the card is a spade, the player wins $7; if it i
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The expected value of the game is the mean value of the game

The expected value of the game is $1

<h3>How to determine the expected value?</h3>

There are 13 spades in a deck of card of 52

So, the probability of selecting a spade is:

P(Spade) = 13/52

Simplify

P(Spade) = 1/4

Winning = $7

The probability of not selecting a spade is:

P(Not spade) = 1 - 1/4

Simplify

P(Not spade) = 3/4

Lose = $1

The expected value of the game is:

E(x) = \sum x * P(x)

This gives

E(x) = \frac 14 * 7 - 1 * \frac34

Simplify

E(x) = \frac 74 - \frac34

Evaluate

E(x) = 1

Hence, the expected value of the game is $1

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8 0
3 years ago
PLEASE HELP ILL GIVE BRAINLIEST !!! 100 POINTS !! NO FAKE ANSWERS !
alex41 [277]

Answer:

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Step-by-step explanation:

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3 years ago
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Simplify: 3x – 5 + 23x – 9
padilas [110]

Simple form of equation 3x – 5 + 23x – 9 =<u> 26x-14</u>

<h3>Further Explanation </h3>

Linear Equation in One Variable is an equation that has a variable and the exponent number is one.

Can be stated in the form:

\large {\boxed {\bold {ax = b}}

or

ax + b = c, where a, b, and c are constants, x is a variable

Whereas Linear Equation in two Variable is a linear equation that has 2 variables and the exponent is one

Can be stated in the form:

\large {\boxed {\bold {ax + bx = c}}}

x, y = variable

There are several ways to solve an equation

• Add / Subtract / divide / multiply the same value on both sides

• Combine like terms

• Factoring

• Expanding

Like terms are terms whose variables and their exponents are the same.

You can combine and add terms

The algebraic form of 3x - 5 + 23x - 9 is a Linear Equation in One Variable, can be simplified:

• 1. Combine like terms

(3x + 23x) + (-5 - 9)

• 2. Add like terms:

26x -14

<h3>Learn more </h3>

an algebraic expression

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3 years ago
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7. A prism<br>has height 20cm and<br>volume 800cm sq. The area of base​
galben [10]

answer 8000cm

Step-by-step explanation:

1/2=bxh

1/2×20×800

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You have recently signed up for a new job and noticed this policy for retirement savings. Invest $200 and the employer does 70%
Naya [18.7K]

Answer:

Amount per month contributed by employer $ = 200*0.70 = 140

Total amount employer contributes $ = 140*420 = 58800

Total amount employee contributes $ = 200*420 = 84000

Total amount after 35 years with interest calculated AT 4.8% (Employer + employee + interest) $ = 371024.67

Interest amount for 35 years accumulated $ = 228224.67

Amount deposited by employee $ = 84000

Excess amount in the account over the employee contribution

Including employer contribution $ = 287024.67

Excluding employer contribution $ = 228224.67

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